Cannot open Webroot SecureAnywhere

Hi,

I had Webroot Secureanywhere on my Mac last year. I have the latest OS. I renewed, by installing again Webroot. When I try to open it, the Webroot window with scan options does not open. Previously, I was able to open, and was able to check the status, or change setting. Now, I cannot do anything. 

I installed it using download from the site. I tried to reinstall from the CD, but I get message that the install is up to date.

Help. 

Thanks for assistance.